Ignition Interlock Systems

What is an Ignition Interlock?

An Ignition Interlock is a breath analyzer installed into a vehicle to prevent a person from starting the engine after consuming alcohol. The driver must blow into the device and pass a breath alcohol test before the vehicle will start. The Interlock will allow normal vehicle operation unless it registers a breath alcohol reading above the allowed limit. The device has internal memory. It records numerous activities including alcohol levels of the individual each time tested, time and day of each engine start/stop, alcohol results of random retests while the engine is running, and attempts to circumvent or tamper with the device. Ignition Interlocks are a form of electronic probation.

The Breath Alcohol Ignition Interlock Device (BAIID) was first invented in the early 1970's. The devices were introduced into the DUI/DWI offender marketplace in the mid-1980's. Since that time, over 35 states have created legislation providing for the use of interlocks in the fight against drunk driving. A (BAIID) is a device that interconnects with the ignition and other control systems of a motor vehicle. The purpose of the (BAIID) is to measure the blood alcohol concentration (BAC) of an intended driver and to prevent the motor vehicle from being started if the (BAC) exceeds a preset limit.

What is an Ignition Interlock Program?

An Ignition interlock Program is a structured means of providing a convicted impaired driver a restricted driving privilege. Program participants must meet eligibility criteria and agree to abide by enforceable program guidelines.